A lady has a total of ₹850 in coins of denomination ₹1, ₹2 and ₹5. The number of ₹2 coins is 5 times the number of 5 coins. The total number of coins is 400. How many coins of each denomination are with her?
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Let the no of 5rs coins be x
So the no of 2rs coins 5x
Total coins=400
So 1rs coins=400-x-5x=400-6x
Total money=850
1(400-6x)+2(5x)+5(x)=850
400-6x+15x=850
400+9x=850
9x=450
x=50
So no of 1 rs coins =400-300=100
2rs coins=250
5rs coins=50
So the no of 2rs coins 5x
Total coins=400
So 1rs coins=400-x-5x=400-6x
Total money=850
1(400-6x)+2(5x)+5(x)=850
400-6x+15x=850
400+9x=850
9x=450
x=50
So no of 1 rs coins =400-300=100
2rs coins=250
5rs coins=50
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